diff --git a/README.md b/README.md
index 610bf7b..6e07f05 100644
--- a/README.md
+++ b/README.md
@@ -97,6 +97,4 @@ We love contributions! Feel free to open issues for bugs or feature requests.
 **Our mission is to build a living digital clone for everyone.** Glass is part of Step 1—a trusted pipeline that transforms your daily data into a scalable clone. Visit [pickle.com](https://pickle.com) to learn more.
 
 ## Star History
-
-<img src="./public/assets/star-history-202574.png">
-
+[![Star History Chart](https://api.star-history.com/svg?repos=pickle-com/glass&type=Date)](https://www.star-history.com/#pickle-com/glass&Date)
\ No newline at end of file
diff --git a/electron-builder.yml b/electron-builder.yml
index 532f4ef..d1c1b5d 100644
--- a/electron-builder.yml
+++ b/electron-builder.yml
@@ -8,29 +8,41 @@ productName: Glass
 
 # Publish configuration for GitHub releases
 publish:
-  provider: github
-  owner: pickle-com
-  repo: glass
-  releaseType: draft
+    provider: github
+    owner: pickle-com
+    repo: glass
+    releaseType: draft
 
 # List of files to be included in the app package
 files:
-  - src/**/*
-  - package.json
-  - pickleglass_web/backend_node/**/*
-  - '!**/node_modules/electron/**'
-  - public/build/**/*
+    - src/**/*
+    - package.json
+    - pickleglass_web/backend_node/**/*
+    - '!**/node_modules/electron/**'
+    - public/build/**/*
 
 # Additional resources to be copied into the app's resources directory
 extraResources:
-  - from: src/assets/SystemAudioDump
-    to: SystemAudioDump
-  - from: pickleglass_web/out
-    to: out
+    - from: src/assets/SystemAudioDump
+      to: SystemAudioDump
+    - from: pickleglass_web/out
+      to: out
 
 # macOS specific configuration
 mac:
-  # The application category type
-  category: public.app-category.utilities
-  # Path to the .icns icon file
-  icon: src/assets/logo.icns 
\ No newline at end of file
+    # The application category type
+    category: public.app-category.utilities
+    # Path to the .icns icon file
+    icon: src/assets/logo.icns
+    # Target both Intel and Apple Silicon architectures
+    target:
+        - target: dmg
+          arch:
+              - x64
+              - arm64
+        - target: zip
+          arch:
+              - x64
+              - arm64
+    # Minimum macOS version (supports both Intel and Apple Silicon)
+    minimumSystemVersion: '11.0'
diff --git a/forge.config.js b/forge.config.js
index 4f0bd19..f60a427 100644
--- a/forge.config.js
+++ b/forge.config.js
@@ -5,25 +5,26 @@ const { notarizeApp } = require('./notarize');
 module.exports = {
     packagerConfig: {
         asar: {
-            unpack:
-                '**/*.node,**/*.dylib,' +
-                '**/node_modules/{sharp,@img}/**/*'
+            unpack: '**/*.node,**/*.dylib,' + '**/node_modules/{sharp,@img}/**/*',
         },
         extraResource: ['./src/assets/SystemAudioDump', './pickleglass_web/out'],
         name: 'Glass',
         icon: 'src/assets/logo',
         appBundleId: 'com.pickle.glass',
+        arch: 'universal',
         protocols: [
             {
                 name: 'PickleGlass Protocol',
-                schemes: ['pickleglass']
-            }
+                schemes: ['pickleglass'],
+            },
         ],
         asarUnpack: [
-            "**/*.node",
-            "**/*.dylib",
-            "node_modules/@img/sharp-darwin-arm64/**",
-            "node_modules/@img/sharp-libvips-darwin-arm64/**"
+            '**/*.node',
+            '**/*.dylib',
+            'node_modules/@img/sharp-darwin-x64/**',
+            'node_modules/@img/sharp-libvips-darwin-x64/**',
+            'node_modules/@img/sharp-darwin-arm64/**',
+            'node_modules/@img/sharp-libvips-darwin-arm64/**',
         ],
         osxSign: {
             identity: process.env.APPLE_SIGNING_IDENTITY,
@@ -35,8 +36,8 @@ module.exports = {
             tool: 'notarytool',
             appleId: process.env.APPLE_ID,
             appleIdPassword: process.env.APPLE_ID_PASSWORD,
-            teamId: process.env.APPLE_TEAM_ID
-        }
+            teamId: process.env.APPLE_TEAM_ID,
+        },
     },
     rebuildConfig: {},
     makers: [
diff --git a/package.json b/package.json
index b443c9e..2f9b5ec 100644
--- a/package.json
+++ b/package.json
@@ -66,5 +66,9 @@
         "electron-builder": "^26.0.12",
         "electron-reloader": "^1.2.3",
         "esbuild": "^0.25.5"
+    },
+    "optionalDependencies": {
+        "@img/sharp-darwin-x64": "^0.34.2",
+        "@img/sharp-libvips-darwin-x64": "^1.1.0"
     }
 }
diff --git a/pickleglass_web/app/activity/details/page.tsx b/pickleglass_web/app/activity/details/page.tsx
index f00f71a..f2069b5 100644
--- a/pickleglass_web/app/activity/details/page.tsx
+++ b/pickleglass_web/app/activity/details/page.tsx
@@ -2,7 +2,7 @@
 
 import { useState, useEffect, Suspense } from 'react'
 import { useRedirectIfNotAuth } from '@/utils/auth'
-import { useSearchParams } from 'next/navigation'
+import { useSearchParams, useRouter } from 'next/navigation'
 import Link from 'next/link'
 import {
   UserProfile,
@@ -10,6 +10,7 @@ import {
   Transcript,
   AiMessage,
   getSessionDetails,
+  deleteSession,
 } from '@/utils/api'
 
 type ConversationItem = (Transcript & { type: 'transcript' }) | (AiMessage & { type: 'ai_message' });
@@ -29,6 +30,8 @@ function SessionDetailsContent() {
   const [isLoading, setIsLoading] = useState(true);
   const searchParams = useSearchParams();
   const sessionId = searchParams.get('sessionId');
+  const router = useRouter();
+  const [deleting, setDeleting] = useState(false);
 
   useEffect(() => {
     if (userInfo && sessionId) {
@@ -47,6 +50,20 @@ function SessionDetailsContent() {
     }
   }, [userInfo, sessionId]);
 
+  const handleDelete = async () => {
+    if (!sessionId) return;
+    if (!window.confirm('Are you sure you want to delete this activity? This cannot be undone.')) return;
+    setDeleting(true);
+    try {
+      await deleteSession(sessionId);
+      router.push('/activity');
+    } catch (error) {
+      alert('Failed to delete activity.');
+      setDeleting(false);
+      console.error(error);
+    }
+  };
+
   if (!userInfo || isLoading) {
     return (
       <div className="min-h-screen bg-[#FDFCF9] flex items-center justify-center">
@@ -92,14 +109,23 @@ function SessionDetailsContent() {
             </div>
 
             <div className="bg-white p-8 rounded-xl">
-                <div className="mb-6">
-                    <h1 className="text-2xl font-bold text-gray-900 mb-2">
-                        {sessionDetails.session.title || `Conversation on ${new Date(sessionDetails.session.started_at * 1000).toLocaleDateString()}`}
-                    </h1>
-                    <div className="flex items-center text-sm text-gray-500 space-x-4">
-                        <span>{new Date(sessionDetails.session.started_at * 1000).toLocaleDateString('en-US', { month: 'long', day: 'numeric', year: 'numeric' })}</span>
-                        <span>{new Date(sessionDetails.session.started_at * 1000).toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit', hour12: true })}</span>
+                <div className="mb-6 flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
+                    <div>
+                        <h1 className="text-2xl font-bold text-gray-900 mb-2">
+                            {sessionDetails.session.title || `Conversation on ${new Date(sessionDetails.session.started_at * 1000).toLocaleDateString()}`}
+                        </h1>
+                        <div className="flex items-center text-sm text-gray-500 space-x-4">
+                            <span>{new Date(sessionDetails.session.started_at * 1000).toLocaleDateString('en-US', { month: 'long', day: 'numeric', year: 'numeric' })}</span>
+                            <span>{new Date(sessionDetails.session.started_at * 1000).toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit', hour12: true })}</span>
+                        </div>
                     </div>
+                    <button
+                        onClick={handleDelete}
+                        disabled={deleting}
+                        className={`px-4 py-2 rounded text-sm font-medium border border-red-200 text-red-700 bg-red-50 hover:bg-red-100 transition-colors ${deleting ? 'opacity-50 cursor-not-allowed' : ''}`}
+                    >
+                        {deleting ? 'Deleting...' : 'Delete Activity'}
+                    </button>
                 </div>
 
                 {sessionDetails.summary && (
diff --git a/pickleglass_web/app/activity/page.tsx b/pickleglass_web/app/activity/page.tsx
index 2909c45..663c17a 100644
--- a/pickleglass_web/app/activity/page.tsx
+++ b/pickleglass_web/app/activity/page.tsx
@@ -7,12 +7,14 @@ import {
   UserProfile,
   Session,
   getSessions,
+  deleteSession,
 } from '@/utils/api'
 
 export default function ActivityPage() {
   const userInfo = useRedirectIfNotAuth() as UserProfile | null;
   const [sessions, setSessions] = useState<Session[]>([])
   const [isLoading, setIsLoading] = useState(true)
+  const [deletingId, setDeletingId] = useState<string | null>(null)
 
   const fetchSessions = async () => {
     try {
@@ -47,6 +49,20 @@ export default function ActivityPage() {
     return 'Good evening'
   }
 
+  const handleDelete = async (sessionId: string) => {
+    if (!window.confirm('Are you sure you want to delete this activity? This cannot be undone.')) return;
+    setDeletingId(sessionId);
+    try {
+      await deleteSession(sessionId);
+      setSessions(sessions => sessions.filter(s => s.id !== sessionId));
+    } catch (error) {
+      alert('Failed to delete activity.');
+      console.error(error);
+    } finally {
+      setDeletingId(null);
+    }
+  }
+
   return (
     <div className="min-h-screen bg-gray-50">
       <div className="max-w-4xl mx-auto px-8 py-12">
@@ -67,17 +83,28 @@ export default function ActivityPage() {
           ) : sessions.length > 0 ? (
             <div className="space-y-4">
               {sessions.map((session) => (
-                <Link href={`/activity/details?sessionId=${session.id}`} key={session.id} className="block bg-white rounded-lg p-6 shadow-sm border border-gray-200 hover:shadow-md transition-shadow cursor-pointer">
+                <div key={session.id} className="block bg-white rounded-lg p-6 shadow-sm border border-gray-200 hover:shadow-md transition-shadow cursor-pointer">
                   <div className="flex justify-between items-start mb-3">
-                    <h3 className="text-lg font-medium text-gray-900">{session.title || `Conversation - ${new Date(session.started_at * 1000).toLocaleDateString()}`}</h3>
-                    <span className="text-sm text-gray-500">
-                      {new Date(session.started_at * 1000).toLocaleString()}
-                    </span>
+                    <div>
+                      <Link href={`/activity/details?sessionId=${session.id}`} className="text-lg font-medium text-gray-900 hover:underline">
+                        {session.title || `Conversation - ${new Date(session.started_at * 1000).toLocaleDateString()}`}
+                      </Link>
+                      <div className="text-sm text-gray-500">
+                        {new Date(session.started_at * 1000).toLocaleString()}
+                      </div>
+                    </div>
+                    <button
+                      onClick={() => handleDelete(session.id)}
+                      disabled={deletingId === session.id}
+                      className={`ml-4 px-3 py-1 rounded text-xs font-medium border border-red-200 text-red-700 bg-red-50 hover:bg-red-100 transition-colors ${deletingId === session.id ? 'opacity-50 cursor-not-allowed' : ''}`}
+                    >
+                      {deletingId === session.id ? 'Deleting...' : 'Delete'}
+                    </button>
                   </div>
-                    <span className="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-blue-100 text-blue-800">
-                      Conversation
-                    </span>
-                    </Link>
+                  <span className="inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-blue-100 text-blue-800">
+                    Conversation
+                  </span>
+                </div>
               ))}
             </div>
           ) : (
diff --git a/pickleglass_web/app/personalize/page.tsx b/pickleglass_web/app/personalize/page.tsx
index 1a0d562..c24398b 100644
--- a/pickleglass_web/app/personalize/page.tsx
+++ b/pickleglass_web/app/personalize/page.tsx
@@ -1,8 +1,8 @@
 'use client'
 
 import { useState, useEffect } from 'react'
-import { ChevronDown } from 'lucide-react'
-import { getPresets, updatePreset, PromptPreset } from '@/utils/api'
+import { ChevronDown, Plus, Copy } from 'lucide-react'
+import { getPresets, updatePreset, createPreset, PromptPreset } from '@/utils/api'
 
 export default function PersonalizePage() {
   const [allPresets, setAllPresets] = useState<PromptPreset[]>([]);
@@ -72,7 +72,6 @@ export default function PersonalizePage() {
           )
         );
       setIsDirty(false);
-        console.log('Save completed!');
     } catch (error) {
       console.error("Save failed:", error);
       alert("Failed to save preset. See console for details.");
@@ -81,6 +80,73 @@ export default function PersonalizePage() {
     }
   };
 
+  const handleCreateNewPreset = async () => {
+    const title = prompt("Enter a title for the new preset:");
+    if (!title) return;
+    
+    try {
+      setSaving(true);
+      const { id } = await createPreset({
+        title,
+        prompt: "Enter your custom prompt here..."
+      });
+      
+      const newPreset: PromptPreset = {
+        id,
+        uid: 'current_user',
+        title,
+        prompt: "Enter your custom prompt here...",
+        is_default: 0,
+        created_at: Date.now(),
+        sync_state: 'clean'
+      };
+      
+      setAllPresets(prev => [...prev, newPreset]);
+      setSelectedPreset(newPreset);
+      setEditorContent(newPreset.prompt);
+      setIsDirty(false);
+    } catch (error) {
+      console.error("Failed to create preset:", error);
+      alert("Failed to create preset. See console for details.");
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  const handleDuplicatePreset = async () => {
+    if (!selectedPreset) return;
+    
+    const title = prompt("Enter a title for the duplicated preset:", `${selectedPreset.title} (Copy)`);
+    if (!title) return;
+    
+    try {
+      setSaving(true);
+      const { id } = await createPreset({
+        title,
+        prompt: editorContent
+      });
+      
+      const newPreset: PromptPreset = {
+        id,
+        uid: 'current_user',
+        title,
+        prompt: editorContent,
+        is_default: 0,
+        created_at: Date.now(),
+        sync_state: 'clean'
+      };
+      
+      setAllPresets(prev => [...prev, newPreset]);
+      setSelectedPreset(newPreset);
+      setIsDirty(false);
+    } catch (error) {
+      console.error("Failed to duplicate preset:", error);
+      alert("Failed to duplicate preset. See console for details.");
+    } finally {
+      setSaving(false);
+    }
+  };
+
   if (loading) {
     return (
       <div className="flex items-center justify-center h-full">
@@ -98,19 +164,39 @@ export default function PersonalizePage() {
               <p className="text-sm text-gray-500 mb-2">Presets</p>
               <h1 className="text-3xl font-bold text-gray-900">Personalize</h1>
             </div>
-            <button
-              onClick={handleSave}
-              disabled={saving || !isDirty || selectedPreset?.is_default === 1}
-              className={`px-4 py-2 rounded-md text-sm font-medium transition-all duration-200 ${
-                !isDirty && !saving
-                  ? 'bg-gray-500 text-white cursor-default'
-                  : saving 
-                    ? 'bg-gray-400 text-white cursor-not-allowed' 
-                    : 'bg-gray-600 text-white hover:bg-gray-700'
-              }`}
-            >
-              {!isDirty && !saving ? 'Saved' : saving ? 'Saving...' : 'Save'}
-            </button>
+            <div className="flex gap-2">
+              <button
+                onClick={handleCreateNewPreset}
+                disabled={saving}
+                className="px-4 py-2 rounded-md text-sm font-medium transition-all duration-200 bg-blue-600 text-white hover:bg-blue-700 disabled:bg-gray-400 disabled:cursor-not-allowed flex items-center gap-2"
+              >
+                <Plus className="h-4 w-4" />
+                New Preset
+              </button>
+              {selectedPreset && (
+                <button
+                  onClick={handleDuplicatePreset}
+                  disabled={saving}
+                  className="px-4 py-2 rounded-md text-sm font-medium transition-all duration-200 bg-green-600 text-white hover:bg-green-700 disabled:bg-gray-400 disabled:cursor-not-allowed flex items-center gap-2"
+                >
+                  <Copy className="h-4 w-4" />
+                  Duplicate
+                </button>
+              )}
+              <button
+                onClick={handleSave}
+                disabled={saving || !isDirty || selectedPreset?.is_default === 1}
+                className={`px-4 py-2 rounded-md text-sm font-medium transition-all duration-200 ${
+                  !isDirty && !saving
+                    ? 'bg-gray-500 text-white cursor-default'
+                    : saving 
+                      ? 'bg-gray-400 text-white cursor-not-allowed' 
+                      : 'bg-gray-600 text-white hover:bg-gray-700'
+                }`}
+              >
+                {!isDirty && !saving ? 'Saved' : saving ? 'Saving...' : 'Save'}
+              </button>
+            </div>
           </div>
         </div>
       </div>
@@ -137,13 +223,18 @@ export default function PersonalizePage() {
                   onClick={() => handlePresetClick(preset)}
                   className={`
                     p-4 rounded-lg cursor-pointer transition-all duration-200 bg-white
-                    h-48 flex flex-col shadow-sm hover:shadow-md
+                    h-48 flex flex-col shadow-sm hover:shadow-md relative
                     ${selectedPreset?.id === preset.id
                       ? 'border-2 border-blue-500 shadow-md'
                       : 'border border-gray-200 hover:border-gray-300'
                     }
                   `}
                 >
+                  {preset.is_default === 1 && (
+                    <div className="absolute top-2 right-2 bg-yellow-100 text-yellow-800 text-xs px-2 py-1 rounded-full">
+                      Default
+                    </div>
+                  )}
                   <h3 className="font-semibold text-gray-900 mb-3 text-center text-sm">
                     {preset.title}
                   </h3>
@@ -158,12 +249,24 @@ export default function PersonalizePage() {
       </div>
 
       <div className="flex-1 bg-white">
-        <div className="h-full px-8 py-6">
+        <div className="h-full px-8 py-6 flex flex-col">
+          {selectedPreset?.is_default === 1 && (
+            <div className="mb-4 p-4 bg-yellow-50 border border-yellow-200 rounded-lg">
+              <div className="flex items-center gap-2">
+                <div className="w-4 h-4 bg-yellow-400 rounded-full"></div>
+                <p className="text-sm text-yellow-800">
+                  <strong>This is a default preset and cannot be edited.</strong> 
+                  Use the "Duplicate" button above to create an editable copy, or create a new preset.
+                </p>
+              </div>
+            </div>
+          )}
           <textarea
             value={editorContent}
             onChange={handleEditorChange}
-            className="w-full h-full text-sm text-gray-900 border-0 resize-none focus:outline-none bg-transparent font-mono leading-relaxed"
+            className="w-full flex-1 text-sm text-gray-900 border-0 resize-none focus:outline-none bg-transparent font-mono leading-relaxed"
             placeholder="Select a preset or type directly..."
+            readOnly={selectedPreset?.is_default === 1}
           />
         </div>
       </div>
diff --git a/pickleglass_web/utils/api.ts b/pickleglass_web/utils/api.ts
index 6e6561f..78d0c41 100644
--- a/pickleglass_web/utils/api.ts
+++ b/pickleglass_web/utils/api.ts
@@ -542,7 +542,10 @@ export const updatePreset = async (id: string, data: { title: string, prompt: st
         method: 'PUT',
         body: JSON.stringify(data),
     });
-    if (!response.ok) throw new Error('Failed to update preset');
+    if (!response.ok) {
+      const errorText = await response.text();
+      throw new Error(`Failed to update preset: ${response.status} ${errorText}`);
+    }
   }
 };
 
diff --git a/src/features/listen/liveSummaryService.js b/src/features/listen/liveSummaryService.js
index 3c03c62..1f367e3 100644
--- a/src/features/listen/liveSummaryService.js
+++ b/src/features/listen/liveSummaryService.js
@@ -524,6 +524,8 @@ async function saveConversationTurn(speaker, transcription) {
 }
 
 async function initializeLiveSummarySession(language = 'en') {
+    // Use system environment variable if set, otherwise use the provided language
+    const effectiveLanguage = process.env.OPENAI_TRANSCRIBE_LANG || language || 'en';
     if (isInitializingSession) {
         console.log('Session initialization already in progress.');
         return false;
@@ -620,7 +622,7 @@ async function initializeLiveSummarySession(language = 'en') {
         };
 
         const mySttConfig = {
-            language: language,
+            language: effectiveLanguage,
             callbacks: {
                 onmessage: handleMyMessage,
                 onerror: error => console.error('My STT session error:', error.message),
@@ -628,7 +630,7 @@ async function initializeLiveSummarySession(language = 'en') {
             },
         };
         const theirSttConfig = {
-            language: language,
+            language: effectiveLanguage,
             callbacks: {
                 onmessage: handleTheirMessage,
                 onerror: error => console.error('Their STT session error:', error.message),